8=3x^2+24x+56

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Solution for 8=3x^2+24x+56 equation:


Simplifying
8 = 3x2 + 24x + 56

Reorder the terms:
8 = 56 + 24x + 3x2

Solving
8 = 56 + 24x + 3x2

Solving for variable 'x'.

Combine like terms: 8 + -56 = -48
-48 + -24x + -3x2 = 56 + 24x + 3x2 + -56 + -24x + -3x2

Reorder the terms:
-48 + -24x + -3x2 = 56 + -56 + 24x + -24x + 3x2 + -3x2

Combine like terms: 56 + -56 = 0
-48 + -24x + -3x2 = 0 + 24x + -24x + 3x2 + -3x2
-48 + -24x + -3x2 = 24x + -24x + 3x2 + -3x2

Combine like terms: 24x + -24x = 0
-48 + -24x + -3x2 = 0 + 3x2 + -3x2
-48 + -24x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-48 + -24x + -3x2 = 0

Factor out the Greatest Common Factor (GCF), '-3'.
-3(16 + 8x + x2) = 0

Factor a trinomial.
-3((4 + x)(4 + x)) = 0

Ignore the factor -3.

Subproblem 1

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Solution

x = {-4, -4}

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